Magnetic chuck.



vPAIENTED AUG. 2, 1904.

- G. W. sPoNsBL.

MAGNETIC CHUCK, APPLICATION FILED F1 '.B.6 1904.

2 SHEBTS-SHEET l.

N0 MODEL.

No. 766,201. I PATBNTBD AUC. z, 1904.

C. W. sPCNsEL. MAGNETIC CHUCK.

APPLICATION FILED P EB. e. 1904.4 l No MODEL. I 2 SHEETS-SHEET 2,

N WMM UNITED STATES Patented August 2, 1904.

PATENT OEEIcE.

CHARLES W. SPONSEL, OF HARTFORD, CONNECTICUT, ASSIGNOR OF ONE- HALF TOCHARLES F. TAYLOR, OF HARTFORD, CONNECTICUT.

MAGNETIC CHUCK.

SPECIFICATION forming part of Letters Patent No. 766,201, dated August2, 1904;. Application filed February 6, 1904.. Serial No. 192,292. (Nomodel.)

T a/Z whom, it nfl/ay concern:

Be it known that I, CHARLES VW. SroNsEL,

a citizen of the United States of America, re-

siding at Hartford, in the county of Hartford and State of Connecticut,have invented certain new and useful Improvements in Magnetic Chucks, ofwhich the following is a specification.

This invention relates to magnetic chucks or carriers especiallydesigned for use with machines for presenting articles for inspection ofthe kind set forth in my application filed September 25, 1903, SerialNo. 174,577.

' Primarily the object of the invention is the provision of a magneticchuck or carrier for presenting' the articles for inspection.

A further object of the invention is the provision of a magnetic chuckor carrier of peculiar construction and one in which the articlesreceived at an angle from suitable conveyer mechanism may beadjusted topresent them in proper position for the action of chucks or otherdevices by which they may be turned for inspection purposes.

2 5 A further object of the invention is the provision of a magneticcarrier in which the articles to be presented for inspection are heldabove, but out of contact with, the electromagnets, so that when thecircuit controlling the action of the carrier is broken they will not beretained on the carrier by residual magnetism.

A further object of the invention is the provision of notched plates,one of which is movable with relation to the other, so that articlesreceived at an angle to the carrier in the notches of the plates may beadjusted to proper position to enable them to be turned for purposes ofinspection.

Further objects of the invention will be hereinafter set forth.

In the accompanying drawings, Figure 1 is a plan view of part of amachine for presenting articles for inspection involving my in- 4`5-vention. Fig. 2 is an end view of said part of the machine. Fig. 3 is aview corresponding to Fig. 2 and partially in section, showing theposition of the magnetic carrierwheu it receives the articles from theconveyer mechanism. Fig. 4. is a view similar to Fig. 3 and 5 O alsopartially in section, showing another position of the carrier. Fig. 5 isa plan view of the carrier, illustrating the articles in the positionsthey are received from the conveyer mechanism. Fig. 6 is a view similarto Fig. 55 5, showing the articles brought to their proper positions inreadiness to be received by the chucks for turning purposes. Fig. 7 is aside view, partially in section, of my invention; and Fig. 8 is atransverse section on line 8 8 6o of Fig. 7.

Like numerals designate similar parts throughout the several views.

Referring to the drawings, the numeral 5 designates framework of anysuitable construction in which the magnetic carrier is mounted foroperation. This carrier is shown as having trunnions 6, which arejournaled in arms 7, keyed or otherwise secured to a rock- .shaft 8,which may be operated in any desired way-as, for instance, by a pitman9, connected with a crank-arm 10, secured to said rockshaft, asillustrated in Figs. 1 and 7.

Designated by the numeral 12 are conveyerscrews which may be driveneither intermittingly or continuously in any desired manner to advancearticles held between the threads thereof to positions where the carriermay receive them.

Gearing (designated generally by dotted 8O lines at 13 in Fig. 2) isshown as one means by which the conveyer-screws 12 may be rotated in thesame direction; but it is distinctly to be understood that the inventionis not limited to such gearing, for other means may be employed fordriving the screws without departure therefrom.

My improved magnetic carrier is designated in a general way by thenumeral 14C and comprises in its preferred form a hollow rectanguiarframe. Two plates 15 15', of brass or other non-magnetic material, eachplate having notches 152 for the reception of the articles to beinspected, constitute the sides of the carrier, and back of these platesare iron or other magnetizable plates 16 16/ of less width than theplates 15 15', so that their upper edges will be below the bases of thenotches 152, and consequently will not come into contact with thearticles to be inspected, but will have their full effect when energizedto retain said articles in the notches 152. Said plates 15 15 areseparated to form a coil-receiving chamber by a central core 17, aroundwhich is placed an oblong coil 18, preferably composed of insulated wireof small gage. Toinclose and protect the coil, top 'and bottom plates 19and 20, of brass or other non-magnetic material, are placed between theplates 16 16/, and all the parts are firmly secured together by screws21, passing through the plates 15 15 16 16 and threaded into the core,as shown in Fig. 8. Trunnions 6 are provided with heads 22 for closingthe ends of the coil-` chamber, and said heads are grooved at 22/ toreceive tongues on the plates 19 and 20, as illustrated in Fig. 7.

Spools 23, composed'of vulcanized liber or other insulating material,surround and are keyed to the trunnions 6, and the flanges of saidspools bear on one side against bearings of the arms 7, and on theirother sides against the heads 22 of said trunnions, as illustrated inFig. 7. Between the flanges of each spool is a metallic contact-ring 24,and the ends of the coil 18, from which the insulating material has beenstripped, are inserted within `said contact-rings, as also shown in Fig.7.

Reduced extensions 6 of the trunnions 6 are journaled in bearings 7/ ofthe arms 7, and to the outer one of said extensions is secured agear-wheel 25, actuated by means hereinafter described.

.Rock-shaft 8 is journaled in bearings 26, rising from the frame orstand 5, and, as above stated, this rock-shaft is actuated by a pitman9, connected to crank-arm 10 by any suitable means-for instance, thoseillustrated and described in my application above mentioned.

Any suitable means may be utilized for energizing and denergizing theelectromagnets 16 16/ of the carrier, and in Fig. 1 of .the drawings acircuit is designated by 27, said circuit having' a switch 28, by whichthe current may be turned on or off, as required. The terminals of thewires of this circuit are connected with contact rings 29, insulatedfrom the rock-shaft 8, and connection `is made between the contact-rings24 and said rings 29 by metallic strips 30, supported upon blocks ofinsulating material 31, secured to and projecting inwardly from the arms7, as illustrated in Figs. 1 and 7.

For axially rocking the magnetic carrier a toothed sector 32, inengagement with gear 25 on one of the extensions 6', is employed, saidsector being at the end of an arm 32', having' a hub 322 sleeved uponthe shaft 8 between an end collar 33 thereof and the hub of the outerarm 7, and for actuating said sector-arm a rod 34 is articulated to aprojection of the arm at one end and may be operated mechanicallyor-otlierwise, as desired. Projecting from a frame or stand 50 is astandard 35, in which is formed a cam-groove 36, adapted to receive apin 37, secured to the notched plate 15. rlhis plate is provided withslots 38, through which the screws 21 pass, and when the pitman 9 isactuated to rock the carrier to the position illustrated in Fig. 3 thestud 37 of said plate will enter the camgroove 36 and will throw theplato to thc position necessary to conform to the inclined location ofthe nails or other articles upon the conveyer-screws 12, as illustratedin Fig. 5, and as said carrier is rocked back to the positionillustrated in Fig. 6 said plate will be actuated by the cam 36 to bringthe nails or other articles received by the magnets from theconveyer-screws 12 to the proper positions forV the action'of the chucksemployed for intermittingly turning the articles to present them forinspection. These chucks are designated in a general way by 39 and arecarried by a slide 40, as illustrated in Figs. 1 and 2 and as fully setforth in my application aforesaid.

In the operation of my invention the circuit having been established bythe switch 28 or otherwise the magnets are energized and the carrier isactuated to the position illus trated in Fig. 3 to attract the nails orother articles from the conveyer-screws. As it is moved to said positionthe plate 15 is thrown by cam 35 to the position illustrated in Fig. 5,and the articles are received from the con veyer-screws, and after thishas been accomplished the carrier is returned to normal position, whereit remains during several of the inspecting periods, as stated in myformer application. During this return movement the sliding plate 15 isactuated to bring the articles from the inclined position (illustratedin Fig. 5) to the straight positions, (illustrated in Fig. 6,)'wherethey vare held in readiness for the action of the chucks 38.

Many changes may be made in the various details of my invention withoutdeparture therefrom, and .various means different from those shown maybe employed for retaining the articles upon the carrier. So, too, otherdevices may be employed for enabling the carrier to receive the articlesin an inclined IOO position from the conveyerescrews and for bringingthem to the proper positions to enter the chucks by which they areintermittingly turned.

Means different from the notches shown for the reception' of thearticles may also be employed without departure from my invention.

Having thus described my invention, what I claim is- 1. A magneticcarrier comprising a body; a coil; an electromagnet; and means on thesides of the carrier, and projecting above the magnet, for preventingthe effect of residual magnetism when the magnet is deenergized.

2. A magnetic carrier comprising a tubular body, a coil within saidbody; a device adapted to be energized by the current traversing thecoil; and means on the sides of the carrier, and projecting above saiddevice, for preventing the etfect of residual magnetism in said devicewhen the circuit of the coil is broken.

3. A magnetic carrier comprising a body; an electromagnet; anon-magnetic device on the side or' the body, and projecting above themagnet, for supporting an article within the lield of, but not inengagement with, said magnet; and means for energizing and deenergizingsaid electromagnet.

4. A hollow carrier comprising' electromagnets; a coil; and non-magneticdevices on the sides of the carrier, and projecting' above the magnets,for supporting an article within the field of, but not in contact with,said magnets.

5. A magnetic carrier comprising plates; a coil for energizing saidplates; and devices of non-magnetic material on the sides of andprojecting above said plates for supporting an article or articleswithin the field of said plates when energized.

6. A carrier having plates of magnetizable material; an energizing-coilfor said plates; and plates of non-magnetic material, the latter havingseats to support articles out of contact from said plates.

7. A magnetic carrier having electromagnets; acoil for energizing saidmagnets; plates of non-magnetic material having notches for thereception of articles to be held by the carrier; and coil-protectingplates.

8. A magnetic carrier having electromagnets; an energizing-coil, platesof non-magnetic material having seats for the reception of articles tobe held by -the carrier, and insulated trunnions, in combination withsupports for said trunnions; and means for actuating said supports.

9. The combination,withacarrier, of plates having seats for thereception of articles; means for moving one of said plates upon saidcarrier; and a conveyer for delivering articles to said plates.

l0. The combination, with a conveyer, of a carrier, a stationary notchedplate, a movable notched plate, and means for actuating said movableplate.

11. A carrier having notched plates proy vided with seats for thereception of articles,

combined with means for reciprocating one of said plates, and with meansfor delivering articles to .said plates.

12. The combination, with a magnetic carrier, of devices having seatsfor the reception ot' articles upon said carrier; means Jfor rocking thecarrier; and means for reciprocating one of said devices with relationto the other.

13. rlhe combination, with a magnetic carrier, having a stationary,notched plate and a reciprocatory notched plate, of means for rockingsaid carrier; and means for reciprocating one ot' said notched plates.

14. The combination, with conveyer mechanism, of a magnetic carrierhaving articlereceiving' plates; means for actuating the carrier towardand Ifrom the conveyer mechanism; and means for reciprocating one ofsaid plates to thereby enable the carrier to receive the articles in thepositions in which they are held by the conveyer mechanism.

15. The combination, with conveyer-screws Afor feeding articles at anangle, of amagnetic carrier; notched plates carried lby said carrier;means for actuating the carrier toward and from the conveyer-screws; andmeans for reciprocating one ot' said notched plates.

16. rlhe combination, with conveyer mechanism, of a carrier; means forrocking said carrier toward and from the conveyer mechanism; notchedplates on the carrier, one of which is movable; and a cam for actuatingsaid movable plate.

17. The combination, with conveyer-screws, of a magnetic carrier; meanslfor actuating said carrier toward and from the conveyerscrews; astationary, notched plate on the carrier; a movable, notched plate alsoon the carrier; a stud carried by said movable plate; and a stationarycam with which said stud engages upon the movements of the carriertoward and fromthe conveyer-screws.

18. A carrier provided with devices for the reception of an article, oneof said devices being movable with relation to the other, whereby anarticle received in one position may be adjusted to a dilerent position,combined with a conveyer for delivering articles to said devices.

19. A magnetic carrier provided with plates adapted to receive articles,one of said plates being movable with relation to the other, wherebyarticles received in one position may be adjusted to another position,combined with means for delivering articles to said plates.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES W. SPONSEL.

Witnesses:

F. E. ANDERSON, C. F. SCHMELZ.

IOO

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